I am thinking of making an SCP that is what the title implies. The idea I have is that what happens is that when you start playing, you can't stop, and when your character gets hurt/dies, you get hurt/die. This seems kind of generic to me, so I am trying to think of how to make it more interesting. My idea is that when you die, your soul gets trapped in the DM's guide and becomes the DM, but you can only leave when someone else's soul gets trapped, so it makes it so that whoever is the DM doesn't just end the game immediately. If everyone survives, you stay stuck in the DM's guide. If someone dies, you get to go free. I would imagine its testing log being quite interesting.

are all injuries real life like if you get "poisoned by the kiss of Hru tharl'" and you only get cyanide poisoning or if say, a medusa enters the room and stone looks you, does the player actually turn to stone? Does the DM get any restrictions, I don't play D&D but i think there has to be limitations from one person saying, "and the trap kills this one player instantly, The End I'm out!" If you want the foundation to be somewhat humane, you can have logs where people do shifts in the SCP, that is if there is nothing wrong that happens to the soul trapped, like an eternal dungeon or something.

If you want to be funny, you could have one of the most boring, unimaginative, by-the-books, D-personal being a DM and the torture that comes sitting through an unimaginative dungeon.

@Derps31: Example: D-662 is playing. His character, Hamdalf the Purple, has 40 hp. Hamdalf takes 10 piercing damage. D-662 would recieve a puncture wound that is exactly one-fourth of the physical trauma required to kill D-662. Then Hamdalf gets bitten by a snake that does 5 poison damage and causes visual hallucinations. D-662 will have the effects of a neurotoxin one-eight of the potency needed to kill him (or in his current wounded form, one-sixth), along with visual hallucinations. Then a medusa petrifies Hamdalf. D-662 (with all of his injuries) turns into stone until Hamdalf is freed from petrification. My idea is that the DM does have unlimited power, so that is why the Foundation has to be very careful with who they test this on. My idea is that whoever is trapped within the DM's guide is in an empty void until someone starts playing. Then the trapped soul becomes omnipotent (within the book) and thus create the campaign. If you don't understand that, basically the soul lives inside of whatever world they create while playing.
When the DM speaks aloud, the sound comes from the DM's guide.

I think your second point is genius. "You enter an abandoned dungeon. It looks like goblins have been here. Do you turn right or left? You encounter one frog. The frog enters a rage-state and bites you. Frogs don't have teeth, so you take no damage. Do you attack the frog? The frog is invincible, so you do no damage. You want to turn around? You can't leave until you defeat the frog. Where are you going? Don't leave me!"